We've received your request for 3TWA21-28P (described as Bearing Ball Airfra), manufactured by Mpb Corporation with CAGE code 78118. This part is registered under NSN 3110-00-787-8888, classified in FSG / FSC . Our verification process will confirm traceability through supporting identifiers including NIIN 00-787-8888, NCB code 00 (origin: USA), and INC 00041. Please submit your formal quotation request to proceed.
Thank you for choosing Aerospace Exchange for your 3TWA21-28P requirements. We specialize in authenticated aerospace components, offering both NSN-tracked military parts and commercial equivalents, all validated through our rigorous sourcing protocols.
How to Begin the Quotation Process
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 3110-00-787-8888 Item PartTypeName: BEARING,BALL,AIRFRAME | 3110 | 007878888 | 0 | N | ||
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | U | |||||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 3TWA21-28P | 6 | 1 | 5 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AGVT | OUTER RING WIDTH | 0.2500 INCHES NOMINAL |
| AGVU | INNER RING WIDTH | 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM |
| AGYK | SHIELD QUANTITY | 2 |
| AGZC | LOAD DIRECTION | RADIAL |
| LBMA | LUBRICATION MATERIAL | GREASE |
| LMDC | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| ABXV | BORE DIAMETER | 1.3122 INCHES MINIMUM AND 1.3128 INCHES MAXIMUM |
| ADGA | OVERALL OUTSIDE DIAMETER | 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | INTEGRAL SEALS ARE FORMED BY EXTENDING THE LANDS OF THE OUTER RING TO WITHIN 0.0040 IN. MIN TO 0.0050 IN. MAX OF LANDS OF THE INNER RING,OD FRACTURED AT ONE POINT,ALTERNATE BALL TYPE BEARING WITH ALTER WATING UNDERSIZED BALLS |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| STYL | STYLE DESIGNATOR | SINGLE ROW INNER RING EXTENDED BOTH SIDES |
| End Use : 21180 | Industrial machines, other |
|---|---|
| Schedule B : 8482105068 (NAICS 332991) | Ball bearings, nesoi |
| SITC : 74610 | Ball bearings |
| CRITL | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
|---|---|
| HMIC | N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials. |
| PMIC | U - Precious metal content is unknown |
| AAC | J |
|---|---|
| Classification Control | U |
| MGMT_CTL | 9b----- |
| Quantity per pack | 1 |
| Repariability | |
| Shelf Life | N/A |
| SOS | Sms |
| Unit of Measure | Ea |
| ACC: | V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing |
|---|---|
| ADC: | A - Shipment is not a consolidation and does not exceed 84 inches in any dimension. |
| LTL: | P - 77.5 |
| NMFC: | 114820 - Bearings/bushings noi ball/roller |
| SHC: | 9 - Other or no special handling required (sh) |
| TCC: | Z - No special type of cargo code applicable |
| WCC: | 742 - Bearings |
![]() |
AS9120B and ISO 9001:2015 |
![]() |
Aviation Suppliers Association Member |
![]() |
FAA AC 0056B Accredited |
![]() |
AS 6081:2012 Certification |
![]() |
ESD S20.20-2014 Certification |
Don’t forget That We offer 24/7 Service, Competitive Prices, and Fast Deliveries. We Hope You'll Make Us Your One-Stop Purchasing Solution!
Request for Quote